Windows Phone 7.8 is a transitional version between WP7.5 and WP8. And WP7.8 brings new customized interface and improvements of market and so on, which is available on 510, 610, 710, 800 and 900. But does the WP7.8 really improve a lot? Let’s check it out.
Followings are comparison between WP7.5 and WP7.8 on general performance, CPU, JS etc.
Generally speaking, The WP7.8 actually doesn't improve so much. It can be said that WP7.8 is more a matter of new features added.